Saw-swage.



SAW SWAGE.

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WWHESSES.

No. 856,381. PATENTED JUNE 11, 1907.

A. R. WILSON.

SAW SWAGE.

APPLICATION FILED 00123. 1906.

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PATENTED JUNE 11, 190 7.

A. R. WILSON.

SAW SWAGE APPLICATION FILED OUT-3. 1906.

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SAW-SWAGE.

Specification of Letters Patent.

Patented June 1 1, 1907.

Application filed October 3, 1905. Serial No. 281,193.

To all whom it may concern:

Be it known that I, ALEXANDER R. WIL- SON, a citizen of the UnitedStates, residing at Spokane, county of Spokane, State of Washington,have invented new and useful Improvements in Saw-Swages; and I do herebydeclare that the following is a full, clear, and exact description ofthe same.

The object of this invention is to provide a stronger swage, moreconvenient adjustments, clearer view of working parts, and more wearingsurface of the die than hereto fore used in tools of this class.

The particular manner in which the swage is constructed, and the die andanvil are adjusted to the saws, are fully set forth in the followingspecifications and illustrated in the drawings which accompany it:Figure 1 being a side view of the swage upon the saw, showing an endview of the die within the lever, the lever stop bracket, and means ofadjustment. Fig. 2 being a rear view showing the manner in which theswage is clamped to the saw during the operation; also the means forclamping the lever to the diesleeve. Fig. 3 is a detail view of anvil.Fig. 4 is a detail view of anvil-casing and clamping screw. Fig. 5, asectional view of A. 13., Fig. 2, showing the manner in which the anvilis adjusted to the die, and swiveled to the teeth-of the saw, and themeans of extending the front bracket. Fig. 6, being view of oppositeside to Fig. 1, showing the slot through which the anvil easing screwswivels, indicator finger and latch for holding die casing in the head.Fig. 7 is a sectional view of C. D., Fig. 6, showing die in casing,indicator, Washer and nut for clamping anvil casing to position, and theopening in the head through which the anvil is removed from and placedwithin its casing. Fig. 8, an end view of die and sleeve.

The drawings herewith shown are full size of swage, except length oflevers shown brokenofl'.

In Fig. 1 is shown a side view of lever stop (10), indicator finger(11), and screws (12) which pass through slots to enable the indicatorto be set to any of the graduations on the head, thus allowing the levermore or less movement as required.

The lever (13) Fig. 2, is adjusted on the die sleeve (14) by unscrewingnut (15), which releases the said lever from the ratchet grip,

and can be moved to the desired position.

Through the head, (16) F 2, a slot is cut for the reception of the saw.The means for clamping head (16) to the saw (17) is a screw (18) whichis held stationary by jam nut (19) and the clamping-screw (20) whichpasses through lever (21) and is clamped thereon by nut (22).

A detail view of anvil (23) is shown in Fig. 3; (24) being a handle forremoving the anvil or placing it within the head.

Shown in Fig. i, is a detail of the anvil casing (25), and clampingscrew (16).

Fig. 5 is a section view along the line, A. B. Fig. 2, showing an openspace each side of the anvil casing (25), which is to allow the anviland said casing to be swiveled upon the die sleeve, to fit the top edgeof the saw teeth.

Anvil (23) is held within the casing (25) by means of screw (26), orremoved therefrom by turning the screw until the flat edge is parallelwith the said anvil. Screw (27) is for adjustment of the anvil (23) tothe die (28), thus admitting the amount of saw teeth required betweenthe anvil and die. Shown at 29 is a spring which has a twofold purpose.First, to keep the anvil taut against 27; secondly, to act as a guide insliding the swage over the points of the teeth to the die.

Saw blade (17) is shown in a position to be operated upon, anvil (23)being held rigid and die (28) being rotated from right to left, reducingthe space in which the point of the saw tooth is held, thereby spreadingthe metal at the points of the teeth.

Upon the anvil adjusting screw (27) is a graduated disk (30), providedwith a groove (31), and pin (32) to cause the disk to revolve as thescrew passes through it. The disk (30) is held to position on the head.by indicator finger (33), and retained to position required bytightening screw(34) upon clamp (35). j

The front bracket (36) is herein illustrated with an extension (37)which is adjustable to rest upon one or more teeth of the saw asdesired; the shoe to rest upon the points of the teeth and spring (47)to allow the head to tilt forward upon the points of the saw teeth.

In the side view, Fig. 6, washer (38) forms an indicator finger showingthe position of the anvil in relation to the die 5 the dotted linesshowing the slot through which clamping screw swivels.

The anvil casing is held to position in the head by means of nut (39)tightening against washer (38) upon screw (46).

The latch (40) swiveling on screw (41)is shown entered in annular groove(42) to retain die sleeve (14) within the head.

Illustratedin Fig. 7 is a section view of C. D., Fig. 6, showing the die(28) within the sleeve (14) and the sleeve latched within the head inposition for operating. At 43, the sleeve is shown cut away to enablethe operator to see clearly the relative positions of the die and anviland for convenient removal of the anvil from the head. As the die isheld rigid within the sleeve, and the sleeve retained within the head bylatch (40), the die and sleeve can be oscillated within the said head,by means of lever (13), until the elliptical surfaces of die (28) comein contact with the anvil.

A sectional view of the die is shown in Fig.

5, numeral 28, which illustrates a perfect ellipse, being parallellength-wise and reversible, to enable the operator to adjust the die onbeing worn to new positions. As the die (28) wears from abrasion againstthe saw teeth, by releasing set screw (44) the die can be moved to a newposition in the said casing (14), and repeated until the die iscompletely worn out along the contacting edges.

The die (28) herein shown is elliptical in form; but although this formis in every way suitable for saw swaging it is obvious that other shapesof dies may be applied to the sleeve (14) without departing from thespirit of my invention.

These form the essential structural elements of the swage, and thefurther description relates to the operations in using this device.

The swage being placed upon the saw tooth as shown in Fig. 5, the lever(21, Fig. 2) is pressed forward to clamp the head rigid to the saw.Lever (13) is then pressed forward, compressing the point of the toothbetween anvil (23) and die (28), thus spreading the metal at the pointsof the teeth. Lever (13) is then returned to its original position andlever (21) likewise, which completes the operation on each tooth.

I am aware that, prior to my invention, saw swages of the same generalcharacter have been used for spreading the teeth of saws; but believe Iam original in the open space in the side of the head for tlfe receptionof the anvil; the swiveling of the anvil casing upon the die sleeve; theinsertion and adjustment of die in a sleeve; the "adjustment of frontbracket the lever adjustment on the die sleeve; and the form of dieherein shown.

Having described my invention, what I claim as new, and desire to beprotected in by Letters Patent, is

1. In a saw swage, a head, a die member pivotally mounted therein, acasing having a pivotal bearing mounted upon the die member, means forsecuring said casing in position, and an anvil supported by said casing.

2. In a saw swage, a slotted head, a die member pivotally mountedtherein, a casing having a pivotal bearing upon the die member, meansfor securing said casing in position, an anvil supported by said casing,and a rotatable retaining member mounted upon said casing to engage theouter face of said anvil.

3. In a saw swage, a head, a'die member mounted therein, an anvil, andmeans for mounting said anvil upon the die to swing in an arc concentricwith the center of the die.

4. In a saw swage, a slotted head provided with a curved adjusting slotin one of its side walls, a saw swage die mounted in the lower portionof said head, an anvil casing pivotally supported upon said die andprovided with a securin member extending there from through the curvedslot of the head, and an anvil slidingly mounted upon said casing.

5. In a saw swage, a slotted head, an anvil slidingly mounted therein,and a flat guiding spring disposed beneath the upper wall of 9 said slotand contacting with the face of said anvil to support the same above thetooth of a saw.

6. In a saw swage, a head, an anvil casing provided with a channeltherein, an anvil mounted for longitudinal movement in said channel, anda retaining screw mounted in the casing and projecting through a slot insaid head to permit a lateral adjustment of the anvil and its casing.

7. In a saw swage, a head, an anvil mount ed therein, an adjusting screwmounted in said head and bearing on said anvil, and a graduating disksurrounding said screw and slidingly mounted therewith for relativerotation.

8. In a saw swage, a head, an anvil mounted therein, an adjusting screwmounted in said head and bearing on said anvil, a graduating disksurrounding said screw and slidingly connected therewith for relativerotation, and a clamping device disposed upon said head to engage saiddisk to retain the same against longitudinal movement with the screw.

Spokane, Washington, Sept. 25th, 1905.

ALEXANDER R. l/VILSON.

Witnesses:

A. L. SooTT, W. J. SMITH.

